With regard to the boards and their function. Yes, it ***may*** be for a commercial venture. I have not yet decided what I will do with it. So I will not yet tell about what it is.
IP is almost completely under my control.
That is: no Arduino hardware or software anymore. To be more precise: all libraries but the avr-libc completely re-implemented. Completely different approach on most stuff. A total of >10 000 Locs, including C, Assembler and some "tiny" pieces of forth. Completely own designed hardware. Two Controllers (Mega 644 + Tiny 25V), 1 step up converter and 1 LiIon Charger. "Mostly" ESD hardened. Explicitly designed to be "hackable".
Started as my "Beginner" Project about 1.5 yeards ago on Arduino. When I saw the commercial price tags I started to figure if I can do just as well. By now I have learned a lot about controllers and electronics design. The goal is to have 5 prototypes up and running this year and to do "real" end user testing. If it all goes well I might be able to launch this in 2012. Although 2011 would be much better.
In the end it is about learning to create a complete product from scratch including the tiny company to sell it. The goal being mainly a learning experience. Hence I will put parts or all of it into the open source community - but only after the launch.
The tougher learning experience will be to actually put up and run a tiny a company. I already figured that there are some pretty tough market entry barriers.
So far I have put something between 500 and 1000h of work into it and >5000 Euros in hardware/measurement equipment. I still consider this a pretty cheap price tag compared to what I have learned so far